Smoke blocking system of fireproof door

Abstract

The invention relates to a smoke blocking system of a fireproof door. The smoke blocking system comprises a left door plate, a right door plate and a door frame, wherein the door frame is composed of door upright posts positioned outside the left door plate and the right door plate, and a cross beam which is transversely arranged at the top ends of the two door upright posts; and the left door plate and the right door plate are parallelly opened and closed at the back part of the door frame. The smoke blocking system is characterized in that a left door plate edge and a right door plate edge which are integrated are respectively manufactured on the relative sides of the left door plate and the right door plate through backward bending; the left door plate edge and the right door plate edge are mutually embedded; the smoke blocking system further comprises upper sealing plates and side sealing plates; the upper sealing plates are arranged at gaps of the left door plate and the cross beam and the right door plate and the cross beam; and the side sealing plates are arranged at gas of the left door plate and the door upright posts and the right door plate and the door upright posts. According to the smoke blocking system, the structure design is scientific and reasonable, the system has the advantages that the structure is not liable to deform, the smoke and fire obstruction effect is good, and safety of passengers in an elevator is guaranteed, and the smoke blocking system of the fireproof door has relatively high innovativeness.

Description

technical field [0001] The invention belongs to the field of elevators, and relates to a centrally divided fire door, in particular to a fire door smoke blocking system. Background technique [0002] At present, with the continuous development of the elevator industry and the improvement of public safety awareness, people have higher and higher requirements for elevator door panels, and many of them require fire doors. However, it is well known that most fire casualties are not caused by open flames, but by suffocation caused by smoke. Therefore, although the elevators currently on the market are equipped with fire doors, which play a role in isolating open flames, their effect of blocking smoke is not perfect, and it is difficult to truly ensure the safety of passengers in the car. [0003] For traditional centrally divided fire doors, the smoke-blocking structure in the gap between the two door panels mostly adopts the form of sealing strips and bending fire-proofing. Th...

AI Technical Summary

Problems solved by technology

However, the fire door with this structure still has the problem of deformation of the door panel at high temperature; in addition, due to the problem of processing accuracy, it is impossible to ensure that the two door panels can be tightly fitted, and the effect of blocking smoke and fire cannot be achieved.

[0004] In addition, in the prior art, the two sides and the top of the two door panels have no smoke-blocking functional design. When a fire occurs, the door panels and the door frame will be deformed to varying degrees, so that the gap between the two will become larger and the smoke will be released. It is easier to enter the interior of the car, and there are potential safety hazards

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